Water-cooling system for hydrocarbon-engines.



J. W. PACKARD.

WATER 000mm sYsTEM FOR HYDROGARBON ENGINES.

APPLICATION FILED 00T. 23, 1906. I

Patented Aug. 6, 1912.

attozmqo z sHEETssEEET 1.

QXMQOM J. W. PACKARD.

WATER COOLING SYSTEM FOR HYDROGARBON ENGINES.

APPLICATION FILED 0GT.23.1906.

Patented Aug. 6, 1912.

2 SHEETS-SHEET 2.

gwvewtoz 19 affomwngo JAMES WARD PACKARD, 01? LAKEWOOD, NEW YORK,ASSIGNOR', BY MESNE ASSIGN- MENTS, TQ PACKARD MOTOR CAR CQMPANY, FDETROIT, MICHIGAN, A CORPORA- 'lION OF MICHIGAN.

WATERCOOLING SYSTEM FOR HYDFOCARBON-ENGINES.

Speeification'of Letters Patent.

Application filed October 2s, 1906. Serial in. 340,238.

To all whom it may concern:

Be it known that I, JAMES W. PACKARD, a citizen of the United States,residing at Lakewood, in the county of Chautauqua and State of New York,have invented certain new and useful Improvements in Water-CoolingSystems for Hydrocarbon- Engines, of which. the following is aspecification.

The present invention relates to means for cooling the various workingparts of a hydrocarbon engine and also for cooling the exhaust to assistin condensing and muttling the same.

The invention will be described in connection with the accompanyingdrawings in which,

Figure 1 is a side elevation partly in section of a four-cylinderhydrocarbon engine embodying the lnvention; Fig. 2 is an end view of thesame, partly in section; and Fig. 3 is a plan viewof the lower half ofthe casing showing the water circulating conduits in dotted lines.

The accompanying drawing illustrates a hydrocarbon engine having fourcylinders arranged in line and in pairs, each pair being inclosed withina casing 10. The engine may be of any approved construction and itsdetails will not be described herein as they form no part of the presentinven-' tion. The crank shaft 11, as shown, is mounted in bearings 15 ina sectional crank casing comprising an upper section 12, a middlesection 13 and a bottom section 14.-. The crank shaft bearings areformed in the upper face of the middle section and the lower face of theupper sect-ion so that by separating these sections the crank shaft maybe removed. The lower half of the crank case may, so far as the presentinven 'tion is concerned, be formed in a single piece instead of the twoparts 13, 14. The

particular construction of thecrank case is not an essential feature ofthe present invention except in so far as the water cooling system isconcerned. The crank case is partially filled with .oil into which theseveral cranks dip as the crank shaft rot-ates and the splashing of theoil lubricates thepylinders, crank pins, crank shaft beariiigs'and otherparts exposed to the interior of the crank caser I have found itadvisable to partially heat ,and stationary motors.

Patented Aug. 8,1912.

before utilizing it to cool the cylinders. I

also preferably pass the water throughthe casing of the exhaust passageas it flows from the crank case to the cylinder casings for the doublepurpose of condensing the exhaust and thereby muffling the same andraising the water to a'still'highcr temperature. flows to and throughthe cylinder casings and from the cylinder casin it may be dis- From theexhaust casing the water charged, although in some instances it lead thewater from the cylinder casings into the exhaust pipe .o further cooland condense the exhaust. The invention is particularlyapplicable tomarine motors as such motors are not exposed to the cooling effect ofthe atmosphere as are motors used in motor vehicles, The. invention ishowever applicable to hydrocarbon motors regardless of' the they may beapplied.

The section 13 of the crank case is cored out to forms continuouschannel 16 from an inlet 17 to. an outlet 18, as shown in dotted linesin Fig. 3. The channel 16 runs completely around the casing under theend bearings thereof and it is offset inward at each side opposite themiddle bearing", as shown in the drawing. All of the bearings, and theoil in the casing, are thus kept cool. The water may be supplied to theinlet 17 in any suitable way. As shown, it is pumped through a pipe 19by means of a rotary pump 2-0, the shaft 21 of which is driven'in somesuitable way by the engine. The pipe 19 conducts the water to the inlet17 and from said inlet the water flows in the direction of the arrows,Fig. 3, to the outlet 18. From the outlet 18 the water flows through apipe 22 to the exhaust casing 23.

This casing is suitably cored to produce in.

particular use. to which ternal channels 24 extending lengthwise of thecasing and nearlv surrounding the exhaust passage 25. The channels 24conduct the water to an outlet pipe 26 having two branches 27 whichconduct the water to the lower parts of the cylinder casings 10. Thewater is suitably circulated through these casings and dischargedthrough piping 28 at their upper ends. The water leaving the cylindercasings may be discharged finally as through apipe 29 'or it may bedirected into the exhaust passage 25, as through the pipe 30. Thepipes29, 30, maybe provided with valves 31, 32, to direct the water'asdesired.

In cases where it is not desirable to permit all of the cooling water toenter the exhaust, I provide an opening 33' between the channel 24 andthe'exhaust passage to admit a relatively small quantity of the 2 0cooling water to the exhaust passage to cool and condense the hot ases,for the purpose of lessening and mu ing the exhaust and also to cool theexhaust pipe to a tempera-- ture at which it will not burn an attendant25 .or other person touching it. I also provide a valve 34 for theopening "33 and means for locking the valve 1n any desired position. Inthedrawing I have illustrated an ordinary needle-valve providedwithmeans for setting it and a lock nut 55 for holding it in any desiredadjustment. I 4 It will be understood that the particular shape andcourse of the channels in the'various parts of'the motor may be variedand the arrangement of pipes and conduits may be varied withoutdeparting from the spirit and scope of the invention. Furthermore thecrank case may be made in two parts separated along a plane passingthrough the 40 shaft bearings instead of three parts as shown. I Theinvention is furthermore ap-. plicable to engines having more'or lesscylinders than the number shown in the draw- As previously stated theinvention is particularly desirable "in and applicable to hy-- i Icarbon engines for marine purposes, such as motor boats v Y Y-Having-desc 'bed my invention what I desire to secure by Letters Patbonengine, the combina- 1 er having a" water jacket .CBBQCOIIIPIlSlIlg bearngs trolled means for-conducting a portion of for the crank shaft, ofa-"channel in said crank case having transverse portions extending tothe crank shaft bearings, means .for circulating water through saidchannel whereby the bearings are kept cool and the water partiallywarmed, and means for conducting the water from the crank case to andthrough the said cylinder water jacket.

- 2; In a hydrocarbon engine, a crank case having a water jacket orconduit, anexhaust passage havin a water jacket, and an engine cylinderhaving a water jacket, and

means for forcing the same water successively through said water jackets1n the order mentioned.

- 4 3. In a hydrocarbon engine, the combination with a cylinder having awater jacket, an exhaust casing having a water-jacket and a conne .tionbetween said water jackets, of means or forcing the water first throughthe exhaust jacket and then through the cylinder jacket, and means fordiverting a part of the water in the exhaust jacket directly into theexhaust passage.

4. In a hydrocarbon engine, the vcombina- .tion with a cylinder having awater jacket, 1 an exhaust casing having a Water jacket, and

a connection between said water jackets, of means for forcing the watersuccessively through the exhaust jacket, and the. cylinder jacket, meansfor conducting a part of the 85. water from the cylinder jacket to theexhaust passage, and means for conducting a portion of the water fromthe exhaust jacket directly into the exhaust passage.

5. In a hydrocarbon engine, the combination with a cylinder having awater jacket an exhaust casing having a water jacket," and a connectionbetween said water jackets, of means for forcing the water successivelythrough the exhaust jacket and the cylinder jacket, valve controlledmeans for. conducting a part of the water from the cylinder jacket tothe exhaust passage and valve conthe water from the exhaust jacketdirectly into the exhaust passage.

' In testimony whereof I aflix my signature in presenceof' twowitnesses. I j JAMES WARD PAGKARD.'

' Witnesses:

L. W. MAXSON, R. H. MAXSON.

